CN109495222A

CN109495222A - A kind of RA-RNTI determines method and device

Info

Publication number: CN109495222A
Application number: CN201710812754.0A
Authority: CN
Inventors: 任斌; 赵铮; 达人; 李铁; 郑方政
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2017-09-11
Filing date: 2017-09-11
Publication date: 2019-03-19
Anticipated expiration: 2037-09-11
Also published as: TW201914348A; US20220030636A1; TWI702876B; JP2020533903A; KR102322470B1; KR20200047705A; US11979916B2; CN109495222B; WO2019047599A1; US20230328801A1; US11178701B2; EP3683994A1; US11723076B2; EP3683994A4; EP3961966A1; EP3683994B1; US20200275491A1; JP7086178B2

Abstract

This application discloses a kind of RA-RNTI to determine method and device.In the application, base station receives the random access lead code that terminal is sent；The running time-frequency resource that the base station is occupied according to the random access lead code, determines RA-RNTI, wherein the running time-frequency resource is the other running time-frequency resource of orthogonal frequency division multiplex OFDM symbol level；The base station sends accidental access response message, includes the Downlink Control Information that the base station is the terminal distribution in the accidental access response message, and the Downlink Control Information is scrambled using the RA-RNTI.It may be implemented in using the application and determine RA-RNTI in the random access procedure of NR system.

Description

A kind of RA-RNTI determines method and device

Technical field

The present invention relates to the random access-in wireless communication technology field more particularly to a kind of random access procedure is wireless The determination method of network identity (Random Access-Radio Network Temporary Identifier, RA-RNTI) And device.

Background technique

Random access procedure, which refers to, sends random access lead code from terminal to attempt access wireless network, between network Set up the process before basic signaling connection.In random access procedure, after terminal sends random access lead code, base is monitored The random access stood through Physical Downlink Control Channel (physical downlink control channel, PDCCH) scheduling Respond (random access response, abbreviation RAR, also referred to as Msg2) message.Base station passes through the downlink control in the RAR message Information (downlink control information, DCI) processed, is sent to terminal for the ascending resource for distributing to terminal.It should The cyclic redundancy check (cyclic redundancy check, CRC) of DCI is scrambled by RA-RNTI.Terminal uses RA-RNTI pairs The DCI received is descrambled, to obtain the ascending resource of base station distribution.

In 4G system long term evolution (long term evolution, LTE), RA-RNTI is that have with time and frequency The function of pass.For non-BL/CE (bandwidth-reduced low-complexity/coverage-enhancement, band Low complex degree/coverage enhancement that width reduces) terminal, RA-RNTI is given by:

RA-RNTI=1+t_id+10*f_id ... ... ... ... ... ... ... [1]

Wherein, t_id be Physical Random Access Channel (physical random access channel, PRACH) when The index of first subframe on domain, f_id are the frequency domain bandwidth indexes that PRACH is occupied.

It is newly wirelessly communicated in (NR) system in 5G, random access lead code format has long sequence (L=839) and short sequence (L =139 or 127) two kinds.Wherein, the lead code form of short sequence is as shown in table 1:

The lead code form (subcarrier spacing=15/30/60/120KHz) of the short sequence of table 1:NR

In table 1, for subcarrier spacing=15KHz, Ts=1/30720ms；For SCS=30KHz, Ts=1/ (2* 30720)ms；For SCS=60KHz, Ts=1/ (4*30720) ms, for SCS=120KHz, Ts=1/ (8*30720) ms.

In NR system, for the lead code form of short sequence, due to that may include multiple in a time slot (slot) PRACH preamble sequence, and it is directed to different subcarrier spacings, the number of time slots for including in the radio frames of 10ms is different, nothing Method calculates RA-RNTI using the existing formula of LTE.

Therefore, the random access procedure for NR system is needed at present, and the calculation method of RA-RNTI is defined.

Summary of the invention

The embodiment of the present application provides a kind of RA-RNTI and determines method and device.

In a first aspect, providing a kind of RA-RNTI determines method, comprising:

Base station receives the random access lead code that terminal is sent；

The running time-frequency resource that the base station is occupied according to the random access lead code, determines RA-RNTI；Wherein, when described Frequency resource is the running time-frequency resource of OFDM symbol rank；

The base station sends accidental access response message, include the base station in the accidental access response message is described The Downlink Control Information of terminal distribution, the Downlink Control Information are scrambled using the RA-RNTI.

Optionally, the time-domain resource relevant parameter and frequency for the running time-frequency resource that the RA-RNTI is occupied according to the lead code Domain resource related parameters determine；Wherein, the time-domain resource relevant parameter includes: the starting that the random access lead code occupies Index of the time slot in the radio frames of place that OFDM symbol is occupied in the index in the time slot of place, random access lead code；It is described Frequency domain resource relevant parameter includes: the rope based on the revised Physical Random Access Channel PRACH of the coefficient frequency domain bandwidth occupied Draw, the coefficient is determined according to the OFDM symbol quantity in the number of timeslots and a time slot in a subframe, and the PRACH is used In the transmission random access lead code.

Optionally, the calculation formula of the RA-RNTI are as follows:

RA-RNTI=1+start_symbol_index_in_slot+slot_id*N_symbol_pe r_slot+10*N_ slot_per_subframe*N_symbol_per_slot*f_id

Wherein:

Start_symbol_index_in_slot is the starting OFDM symbol of random access lead code occupancy at place Index in gap；

Slot_id is index of the time slot of random access lead code occupancy in the radio frames of place；

N_symbol_per_slot indicates the quantity of the OFDM symbol in a time slot；

N_slot_per_subframe indicates the number of timeslots in a subframe；

F_id is the index for the frequency domain bandwidth that PRACH is occupied.

Optionally, the time-domain resource relevant parameter and frequency for the running time-frequency resource that the RA-RNTI is occupied according to the lead code Domain resource related parameters determine；Wherein, the time-domain resource relevant parameter includes: the starting that the random access lead code occupies The sequence OFDM symbol number, described random that includes of index of the OFDM symbol in the time slot of place, the random access lead code Index of the time slot that access lead code occupies in the radio frames of place, wherein the starting that the random access lead code occupies Index of the OFDM symbol in the time slot of place is corresponding with the time slot that the random access lead code occupies, before the random access The OFDM symbol number that the sequence of leading code includes is corresponding with the format of the sequence of the random access lead code；The frequency domain resource phase Closing parameter includes: the index based on the revised Physical Random Access Channel PRACH of the coefficient frequency domain bandwidth occupied, the coefficient It is determined according to the OFDM symbol quantity in the number of timeslots and a time slot in a subframe, the PRACH is used for transmission described Random access lead code.

Optionally, the calculation formula of the RA-RNTI are as follows:

RA-RNTI=1+sequence_id_per_slot*N_OS+slot_id*N_symbol_per _ slot+10*N_ slot_per_subframe*N_symbol_per_slot*f_id

Wherein:

Sequence_id_per_slot is the sequence of random access lead code in the time slot that random access lead code occupies Index；Wherein, the corresponding relationship between time slot and the index of random access lead code is pre-configured with or makes an appointment；

N_OS is the OFDM symbol number that the sequence of a random access lead code includes；Wherein, the N_OS is to match in advance It sets or makes an appointment, the sequence of different random access lead codes corresponds to different N_OS；

N_symbol_per_slot indicates the quantity of the OFDM symbol in a time slot；

N_slot_per_subframe indicates the number of timeslots in a subframe；

F_id is the index for the frequency domain bandwidth that PRACH is occupied.

Optionally, the time-domain resource relevant parameter and frequency for the running time-frequency resource that the RA-RNTI is occupied according to the lead code Domain resource related parameters determine；Wherein, the time-domain resource relevant parameter includes: the starting that the random access lead code occupies OFDM symbol random access lead code sequence in the time slot that the index in the time slot of place, the random access lead code occupy Index of the time slot that total, the described random access lead code occupies in the radio frames of place, wherein the random access lead code Index of the starting OFDM symbol of occupancy in the time slot of place is corresponding with the time slot that the random access lead code occupies, described The sum of random access lead code sequence is corresponding with time slot index in the time slot that random access lead code occupies；The frequency domain money Source relevant parameter includes: the index based on the revised Physical Random Access Channel PRACH of the coefficient frequency domain bandwidth occupied, described Coefficient determines that the PRACH is used for transmission according to the OFDM symbol quantity in the number of timeslots and a time slot in a subframe The random access lead code.

Optionally, the calculation formula of the RA-RNTI are as follows:

RA-RNTI=1+sequence_id_per_slot+slot_id*N_sequence_per_sl ot+10*N_ slot_per_subframe*N_symbol_per_slot*f_id

Wherein:

N_sequence_per_slot be random access lead code occupy time slot in, random access lead code sequence Sum；Wherein, N_sequence_per_slot is corresponding with time slot, the random access lead code sequence in a time slot it is total Number is pre-configured with or makes an appointment；

N_symbol_per_slot indicates the quantity of the OFDM symbol in a time slot；

N_slot_per_subframe indicates the number of timeslots in a subframe；

F_id is the index for the frequency domain bandwidth that PRACH is occupied.

Second aspect provides a kind of RA-RNTI and determines method, comprising:

Terminal sends random access leader sequence to base station；

The running time-frequency resource that the terminal is occupied according to the random access leader sequence determines random access-wireless network Identify RA-RNTI；Wherein, the running time-frequency resource is the running time-frequency resource of OFDM symbol rank；

The terminal receives the accidental access response message that the base station is sent, and using described in RA-RNTI descrambling The Downlink Control Information for including in accidental access response message.

Optionally, the calculation formula of the RA-RNTI are as follows:

Wherein:

N_symbol_per_slot indicates the quantity of the OFDM symbol in a time slot；

N_slot_per_subframe indicates the number of timeslots in a subframe；

F_id is the index for the frequency domain bandwidth that PRACH is occupied.

Optionally, the time-domain resource relevant parameter and frequency for the running time-frequency resource that the RA-RNTI is occupied according to the lead code Domain resource related parameters determine；

Wherein, the time-domain resource relevant parameter includes: that the starting OFDM symbol of the random access lead code occupancy exists OFDM symbol number, the random access lead code that the sequence of index, the random access lead code in the time slot of place includes Index of the time slot of occupancy in the radio frames of place, wherein the starting OFDM symbol that the random access lead code occupies is in institute Index, the sequence packet of the random access lead code corresponding with the time slot that the random access lead code occupies in time slot The OFDM symbol number contained is corresponding with the format of the sequence of the random access lead code；

The frequency domain resource relevant parameter includes: to be occupied based on the revised Physical Random Access Channel PRACH of coefficient The index of frequency domain bandwidth, the coefficient are true according to the OFDM symbol quantity in the number of timeslots and a time slot in a subframe Fixed, the PRACH is used for transmission the random access lead code.

Optionally, the calculation formula of the RA-RNTI are as follows:

Wherein:

N_symbol_per_slot indicates the quantity of the OFDM symbol in a time slot；

N_slot_per_subframe indicates the number of timeslots in a subframe；

F_id is the index for the frequency domain bandwidth that PRACH is occupied.

Optionally, the calculation formula of the RA-RNTI are as follows:

Wherein:

N_symbol_per_slot indicates the quantity of the OFDM symbol in a time slot；

N_slot_per_subframe indicates the number of timeslots in a subframe；

F_id is the index for the frequency domain bandwidth that PRACH is occupied.

The third aspect provides a kind of base station, comprising:

Receiving module, for receiving the random access lead code of terminal transmission；

Determining module, the running time-frequency resource for being occupied according to the random access lead code, determines random access-wireless network Network identifies RA-RNTI；Wherein, the running time-frequency resource is the other running time-frequency resource of orthogonal frequency division multiplex OFDM symbol level；

Sending module includes the base station in the accidental access response message for sending accidental access response message For the Downlink Control Information of the terminal distribution, the Downlink Control Information is scrambled using the RA-RNTI.

Fourth aspect provides a kind of terminal, comprising:

Sending module, for sending random access leader sequence to base station；

Determining module, the running time-frequency resource for being occupied according to the random access leader sequence determine that random access-is wireless Network identity RA-RNTI；Wherein, the running time-frequency resource is the running time-frequency resource of OFDM symbol rank；

Receiving module, the accidental access response message sent for receiving the base station, and descrambled using the RA-RNTI The Downlink Control Information for including in the accidental access response message.

5th aspect, provides a kind of communication device, comprising: processor, memory, transceiver and bus interface；It is described Processor, for reading the program in memory, execution:

The random access lead code sent by the transceiver terminal；

According to the running time-frequency resource that the random access lead code occupies, random access-wireless network identification RA- is determined RNTI；Wherein, the running time-frequency resource is the other running time-frequency resource of orthogonal frequency division multiplex OFDM symbol level；

Accidental access response message is sent by the transceiver, includes the base station in the accidental access response message For the Downlink Control Information of the terminal distribution, the Downlink Control Information is scrambled using the RA-RNTI.

6th aspect, provides a kind of communication device, comprising: processor, memory, transceiver and bus interface；It is described Processor, for reading the program in memory, execution:

Random access leader sequence is sent to base station by the transceiver；

According to the running time-frequency resource that the random access leader sequence occupies, random access-wireless network identification RA- is determined RNTI；Wherein, the running time-frequency resource is the other running time-frequency resource of orthogonal frequency division multiplex OFDM symbol level；

The accidental access response message sent by base station described in the transceiver, and solved using the RA-RNTI Disturb the Downlink Control Information for including in the accidental access response message.

7th aspect, provides a kind of computer storage medium, the computer-readable recording medium storage has computer can It executes instruction, the computer executable instructions are for making the computer execute side described in any one of above-mentioned first aspect Method.

Eighth aspect, provides a kind of computer storage medium, and the computer-readable recording medium storage has computer can It executes instruction, the computer executable instructions are for making the computer execute side described in any one of above-mentioned second aspect Method.

In above-described embodiment of the application, RA-RNTI can be determined according to the running time-frequency resource that random access lead code occupies, and The running time-frequency resource is the running time-frequency resource of OFDM symbol rank.Due to the OFDM symbol rank occupied based on random access lead code Running time-frequency resource calculate RA-RNTI, can be for the lead code form and subcarrier spacing of short sequence therefore for NR system A variety of situations so that the time interval of random access lead code be based on OFDM symbol rank, realize NR system with RA-RNTI is determined in machine access procedure.

Detailed description of the invention

Fig. 1 is the network architecture schematic diagram that the embodiment of the present application is applicable in；

Fig. 2 is random access procedure schematic diagram provided by the embodiments of the present application；

Fig. 3 is the structural schematic diagram of base station provided by the embodiments of the present application；

Fig. 4 is the structural schematic diagram of terminal provided by the embodiments of the present application；

Fig. 5 is the structural schematic diagram of communication device provided by the embodiments of the present application；

Fig. 6 is the structural schematic diagram for the communication device that another embodiment of the application provides.

Specific embodiment

Hereinafter, the part term in the embodiment of the present application is explained, in order to those skilled in the art understand that.

(1) in the embodiment of the present application, noun " network " and " system " are often used alternatingly, but those skilled in the art can To understand its meaning.

(2) term " multiple " refers to two or more in the embodiment of the present application, and other quantifiers are similar therewith.

(3) "and/or" describes the incidence relation of affiliated partner, indicates may exist three kinds of relationships, for example, A and/or B, Can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.Character "/" typicallys represent forward-backward correlation pair As if a kind of relationship of "or".

Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete Site preparation description.

Fig. 1 schematically illustrates a kind of schematic diagram of possible communication scenes provided by the embodiments of the present application.Such as Fig. 1 institute Show, terminal 110 is linked into wireless network by wireless access network (radio access network, RAN) node 120, with logical The service that wireless network obtains outer net (such as internet) is crossed, or is communicated by wireless network with other terminals.

Wherein, terminal be also referred to as user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal (mobile terminal, MT) etc., is a kind of equipment for providing a user voice and/or data connectivity, For example, handheld device, mobile unit etc. with wireless connecting function.Currently, the citing of some terminals are as follows: mobile phone (mobile phone), tablet computer, laptop, palm PC, mobile internet device (mobile internet Device, MID), wearable device, virtual reality (virtual reality, VR) equipment, augmented reality (augmented Reality, AR) equipment, the wireless terminal in Industry Control (industrial control), unmanned (self Driving the wireless terminal in wireless terminal, remote operation (remote medical surgery) in), smart grid The wireless terminal in wireless terminal, transportation safety (transportation safety) in (smart grid), smart city The wireless terminal etc. in wireless terminal, wisdom family (smart home) in (smart city).

RAN is the part that terminal is linked into wireless network in network.RAN node (or equipment) is in wireless access network Node (or equipment), and it is properly termed as base station.Currently, the citing of some RAN nodes are as follows: gNB, transmission receiving point (transmission reception point, TRP), evolved node B (evolved Node B, eNB), wireless network control Device (radio network controller, RNC) processed, node B (Node B, NB), base station controller (base station Controller, BSC), base transceiver station (base transceiver station, BTS), Home eNodeB is (for example, home Evolved NodeB or home Node B, HNB), Base Band Unit (base band unit, BBU) or Wireless Fidelity (wireless fidelity, Wifi) access point (access point, AP) etc..In addition, RAN can in a kind of network structure To include centralized unit (centralized unit, CU) node and distribution unit (distributed unit, DU) node.This Kind structure splits the protocol layer of eNB in long term evolution (long term evolution, LTE) system, part protocol layer Function is placed on CU centralized control, and the function of being left part or all of protocol layer is distributed in DU, by CU centralized control DU.

The network architecture of the embodiment of the present application description is the technical solution in order to more clearly illustrate the embodiment of the present application, The restriction to technical solution provided by the embodiments of the present application is not constituted, those of ordinary skill in the art are it is found that with network rack The differentiation of structure, technical solution provided by the embodiments of the present application are equally applicable for similar technical problem.

For NR system, since there are the lead code forms of short sequence, and subcarrier spacing makes there is also a variety of situations The time interval for obtaining random access lead code is based on orthogonal frequency division multiplexing (orthogonal frequency division Multiplexing, OFDM) the symbol level other time-frequency money of sub-frame level that is other, therefore can not being occupied based on random access lead code Source calculates RA-RNTI.To solve this problem, in the embodiment of the present application, according to the OFDM symbol grade of random access lead code occupancy Other running time-frequency resource calculates RA-RNTI.

Further, in order to reduce the frequency domain resource expense of the PRACH in NR system, when configuring related with RA-RNTI When domain and frequency domain resource, using preferential configuration time-domain resource, secondly the method for frequency domain resource, i.e., only work as in given frequency domain resource All time-domain resources all configure and then configure the time-domain resource in next available frequency domain resource.

The embodiment of the present application is applicable to the meter of the corresponding RA-RNTI of short sequence random access lead code in NR system It calculates, naturally it is also possible to the calculating suitable for the corresponding RA-RNTI of long sequence random access lead code.

The embodiment of the present application provides following three kinds of methods and calculates RA-RNTI:

Method 1

In method 1, for calculating the time-domain resource relevant parameter of RA-RNTI can include: what random access lead code occupied Index of the time slot in the radio frames of place that primary sign is occupied in the index in the time slot of place, random access lead code；For The frequency domain resource relevant parameter for calculating RA-RNTI may include the index based on the revised PRACH of the coefficient frequency domain bandwidth occupied, The coefficient can be determined according to the symbol quantity in the number of timeslots and a time slot in a subframe.

Following formula (2) schematically illustrates a kind of method for calculating RA-RNTI based on method 1:

RA-RNTI=1+start_symbol_index_in_slot+slot_id*N_symbol_pe r_slot+10*N_ slot_per_subframe*N_symbol_per_slot*f_id……………………[2]

Wherein:

Start_symbol_index_in_slot is the starting OFDM symbol of random access lead code occupancy at place Index in gap.By 14 OFDM symbols most in a time slot and OFDM symbol index value is since 0 for serial number, The value range of start_symbol_index_in_slot is [0,13].In base station side, before base station is by detection random access The running time-frequency resource position of leading code can get the value of start_symbol_index_in_slot.

Slot_id is index of the time slot of random access lead code occupancy in the 10ms radio frames of place.One 10ms without The index of time slot in line frame can since 1 serial number.In the time-frequency that base station side, base station pass through detection random access lead code Resource location can get the value of slot_id.

N_symbol_per_slot is the quantity of the OFDM symbol in a time slot.Be 15KHz for subcarrier spacing, In the case where 30KHz, 60KHz and 120KHz, the value of N_symbol_per_slot is 14.N_symbol_per_slot Value for well known to base station and terminal.

N_slot_per_subframe indicates the number of timeslots in a 1ms subframe, value and subcarrier spacing size It is related.For example, the value of N_slot_per_subframe is 1 in the case where subcarrier spacing is 15KHz；Between subcarrier In the case where being divided into 30KHz, the value of N_slot_per_subframe is 2；In the case where subcarrier spacing is 60KHz, N_ The value of slot_per_subframe is 4；In the case where subcarrier spacing is 120KHz, N_slot_per_subframe's Value is 8.The value of N_symbol_per_slot is for well known to base station and terminal.

F_id is the index for the frequency domain bandwidth that PRACH is occupied.There are mapping relations with RACH by PRACH, and terminal is on RACH Send random access lead code.The frequency domain bandwidth that PRACH is occupied can make an appointment, and for well known to base station and terminal.

Method 2

In method 2, for calculating the time-domain resource relevant parameter of RA-RNTI can include: what random access lead code occupied It is the index (index is corresponding with the time slot that the random access lead code occupies) of random access lead code sequence in time slot, random OFDM symbol number (symbolic number is corresponding with the format of the random access lead code sequence) that access lead code sequence includes, with Index of the time slot that machine access lead code occupies in the radio frames of place；For calculating the frequency domain resource relevant parameter of RA-RNTI It may include based on the index of the revised PRACH of the coefficient frequency domain bandwidth occupied, which can be according to the time slot in a subframe Symbol quantity in quantity and a time slot obtains.

Following formula (3) schematically illustrates a kind of method for calculating RA-RNTI based on method 2:

RA-RNTI=1+sequence_id_per_slot*N_OS+slot_id*N_symbol_per _ slot+10*N_ slot_per_subframe*N_symbol_per_slot*f_id……………………[3]

Wherein:

Sequence_id_per_slot be random access lead code occupy time slot in, random access lead code sequence Index.Wherein, the corresponding relationship between time slot and the index of random access lead code is preconfigured or makes an appointment. In base station side, base station can get occupied by random access lead code by the running time-frequency resource position of detection random access lead code Time slot (slot_id) and corresponding sequence_id_per_slot value.

N_OS is the OFDM symbol number that a random access lead code sequence includes, value range 1,2,4,6 and 12； Wherein, the N_OS is preconfigured or makes an appointment.Its value is related to random access lead code format, different Short sequence random access lead code format, for example, the value of N_OS can be found in table 1.In base station side, base station can be according to detecting The running time-frequency resource that random access lead code occupies, determine corresponding random access lead code format (random access lead code when Corresponding relationship between frequency resource and used format can be preset and make an appointment), further according to random access lead code Format determines the value of corresponding N_OS.

The meaning of slot_id, N_symbol_per_slot, N_slot_per_subframe and f_id, with it in side Meaning in method 1 is identical.

Method 3

In method 3, for calculating the time-domain resource relevant parameter of RA-RNTI can include: what random access lead code occupied Index of the time slot that the index of random access lead code sequence in time slot, random access lead code occupy in the radio frames of place, The quantity of OFDM symbol in one time slot；Frequency domain resource relevant parameter for calculating RA-RNTI may include being repaired based on coefficient The index for the frequency domain bandwidth that PRACH after just is occupied, which can be according in the number of timeslots and a time slot in a subframe Symbol quantity obtain.

Following formula (4) schematically illustrates a kind of method for calculating RA-RNTI based on method 3:

RA-RNTI=1+sequence_id_per_slot+slot_id*N_sequence_per_sl ot+10*N_ slot_per_subframe*N_symbol_per_slot*f_id……………………[4]

Wherein:

N_sequence_per_slot be random access lead code occupy time slot in, random access lead code sequence Sum.Wherein, there are corresponding relationship, the N_ of a time slot with N_sequence_per_slot for the index (slot_id) of time slot Sequence_per_slot value is preconfigured or makes an appointment.In base station side, before base station is by detection random access The running time-frequency resource position of leading code, can get the occupied time slot of random access lead code index (slot_id), then further according to The slot_id determines the value of corresponding N_sequence_per_slot.

Sequence_id_per_slot, slot_id, N_symbol_per_slot, N_slot_per_subframe with And the meaning of f_id, it is identical as its meaning in method 1.

It referring to fig. 2, is random access procedure provided by the embodiments of the present application.As shown, the process can include:

S201: terminal sends random access lead code.Message transmitted by the step is also referred to as Msg1.Msg1 can be random It is sent in access channel (random access channel, RACH), there are mapping relations between RACH and PRACH.

S202: base station receives the random access lead code that terminal is sent, the symbol occupied according to the random access lead code The running time-frequency resource of rank determines RA-RNTI, and sends accidental access response message, which is also referred to as Msg2 Message.It include the Downlink Control Information (downlink that the base station is the terminal distribution in the accidental access response message Control information, DCI), the CRC of the DCI is scrambled using the RA-RNTI.

Specifically, the method that previous embodiment description can be used in base station calculates RA-RATI.

May include following information in the DCI in the step: the index of random access lead code received by base station, Uplink send time adjustment amount (TA), Physical Uplink Shared Channel (physical uplink shared channel, PUSCH) scheduling information and the Temporary Cell Radio Network temporary identifier of distribution (cell radio network temporary Identifier, C-RNTI) etc..

S203: terminal receives the accidental access response message that base station is sent, and it is random to descramble this using the RA-RNTI determined The Downlink Control Information for including in access response message.Wherein, the method that previous embodiment offer can be used in terminal, according to its institute The running time-frequency resource that the random access lead code of transmission occupies determines RA-RNTI.

Further, for competing random access procedure, may also include in S203 further include: terminal is rung according to random access The scheduling information and TA information for answering middle carrying, carry out the transmission of upstream data.The message that the step is sent is known as Msg3, the Msg3 Message contains unique ID of the terminal, i.e. TMSI, and includes wireless heterogeneous networks (the radio resourse of terminal Control, RRC) layer generate RRC connection request.

Further, for competing random access procedure, may also include that after S203

S205: after base station receives the Msg3 message of terminal, contention resolution message is returned to the terminal being successfully accessed, this disappears Breath is also referred to as Msg4 message.The unique ID (such as C-RNTI) and RRC that the terminal being successfully accessed is contained in the Msg4 message connect Foundation response is connect, RRC connection establishment response is generated by the rrc layer of base station.

The embodiment of the present application is understood in order to clearer, below with reference to 3 kinds of concrete application scenes, and as shown in connection with fig. 2 Process, the 3 kinds of RA-RNTI calculation methods provided formula in the embodiment of the present application (2), formula (3) and formula (4) carry out respectively Description.

Scene 1

The scene description calculates the example of RA-RNTI using the above method 1.It can be pre-configured on base station and terminal such as table Random access preamble number allocation list shown in 2:

Table 2

The starting that above-mentioned table 2 defines the occupied time slot of random leading access code sequence and occupies in this timeslot OFDM symbol.

The scene is by taking subcarrier spacing is 15KHz as an example, in such cases, N_slot_per_subframe=1, N_ The value range of symbol_per_slot=14, start_symbol_index_in_slot isFormula (2) at this time It is reduced to following formula (5):

RA-RNTI=1+start_symbol_index_in_slot+slot_id*14+10*14*f_ id

Based on process shown in Fig. 2, under the scene:

In S201, terminal can according to table 2 determine random access lead code transmission resource, for example, can in time slot 1 from OFDM symbol 0 starts to send random access lead code sequence 0, or sends random access since OFDM symbol 1 in time slot 4 Preamble sequence 1.Any format can be used in transmitted random access lead code.

In S202, the occupied running time-frequency resource of random access lead code that terminal is sent is detected in base station, obtains slot_id And start_symbol_index_in_slot.It base station can also be by detecting the occupied running time-frequency resource of random access lead code Slot_id is obtained, above-mentioned table 2 is inquired further according to the slot_id and obtains corresponding start_symbol_index_in_slot.Base It stands according to the slot_id and start_symbol_index_in_slot detected, and is calculated based on above-mentioned formula (5) RA-RNTI is scrambled using CRC of the RA-RNTI to the DCI of the terminal, and is sent the DCI by random access response.

In S203, RA-RNTI is calculated according to above-mentioned formula (5) in terminal, using the RA-RNTI to receiving The CRC of DCI is descrambled, so that decoding obtains the DCI.

Scene 2

The scene description calculates the example of RA-RNTI using the above method 2.It can be pre-configured on base station and terminal such as table Random access preamble number allocation list shown in 3:

Table 3

Above-mentioned table 3 is directed to the format A1 that random leading access code sequence uses, and defines occupied by random access lead code Time slot and corresponding time slot in random access lead code sequence index.

The scene is by taking subcarrier spacing is 15KHz as an example, in such cases, N_slot_per_subframe=1, N_ Symbol_per_slot=14, for random access lead code Format Series Lines A1, each random access lead code sequence includes OFDM symbol number N_OS=2, sequence_id_per_slot value range is 0~6, and formula (3) is reduced to following public affairs at this time Formula (6):

RA-RNTI=1+sequence_id_per_slot*2+slot_id*14+10*14*f_id

Based on process shown in Fig. 2, under the scene:

In S201, terminal determines that the random access lead code sequence for using format A1, terminal connect at random according to the determination of table 3 Enter the occupied time slot of lead code, for example, can in time slot 1 or send format A1 random access lead code sequence 0, or The random access lead code sequence 1 of format A1 is sent in time slot 4.

In S202, the occupied running time-frequency resource of random access lead code that terminal is sent is detected in base station, obtains slot_ Id, and (should according to the corresponding relationship between the occupied running time-frequency resource of random access lead code and random access lead code format Corresponding relationship is to be pre-configured with or make an appointment) determine that the format of random access lead code sequence is A1, then according to the slot_id It inquires above-mentioned table 3 and obtains corresponding sequence_id_per_slot.Base station according to the slot_id that detects and Sequence_id_per_slot, and RA-RNTI is calculated based on above-mentioned formula (6), using the RA-RNTI to the terminal The CRC of DCI is scrambled, and sends the DCI by random access response.

In S203, RA-RNTI is calculated according to above-mentioned formula (6) in terminal, using the RA-RNTI to receiving The CRC of DCI is descrambled, so that decoding obtains the DCI.

Scene 3

The scene description calculates the example of RA-RNTI using the above method 3.It can be pre-configured on base station and terminal such as table Random access preamble number allocation list shown in 4:

Table 4

The format that above-mentioned table 4 is used for each random leading access code sequence, defines occupied by random access lead code Time slot and corresponding time slot in random access lead code sequence index.

The scene is by taking subcarrier spacing is 15KHz as an example, in such cases, N_slot_per_subframe=1, N_ Symbol_per_slot=14, for random access lead code Format Series Lines A1, the random access preamble that includes in a time slot Sequence number N_sequence_per_slot=7, sequence_id_per_slot value range is 0~6, at this time formula (4) It is reduced to formula (7):

RA-RNTI=1+sequence_id_per_slot+slot_id*7+10*14*f_id

Based on process shown in Fig. 2, under the scene:

In S201, terminal determines that the random access lead code sequence for using format A1, terminal connect at random according to the determination of table 4 Enter the occupied time slot of lead code, for example, can in time slot 1 or send format A1 random access lead code sequence 0, or The random access lead code sequence 1 of format A1 is sent in time slot 4.

In S202, the occupied running time-frequency resource of random access lead code that terminal is sent is detected in base station, obtains slot_ Id, and (should according to the corresponding relationship between the occupied running time-frequency resource of random access lead code and random access lead code format Corresponding relationship is to be pre-configured with or make an appointment) determine that the format of random access lead code sequence is A1, then according to the slot_id It inquires above-mentioned table 4 and obtains corresponding sequence_id_per_slot.Base station according to the slot_id that detects and Sequence_id_per_slot, and RA-RNTI is calculated based on above-mentioned formula (7), using the RA-RNTI to the terminal The CRC of DCI is scrambled, and sends the DCI by random access response.

In S203, RA-RNTI is calculated according to above-mentioned formula (7) in terminal, using the RA-RNTI to receiving The CRC of DCI is descrambled, so that decoding obtains the DCI.

In above-described embodiment of the application, RA-RNTI can be determined according to the running time-frequency resource that random access lead code occupies, and The running time-frequency resource is the other running time-frequency resource of symbol level.Due to the other time-frequency money of the symbol level occupied based on random access lead code Source calculates RA-RNTI, therefore for NR system, can be for the lead code form of short sequence and a variety of feelings of subcarrier spacing Condition so that the time interval of random access lead code be based on symbol level it is other, realize the random access procedure in NR system Middle determining RA-RNTI.

Pass through above-described embodiment of the application, it is ensured that the random access mechanism of 5G NR can operate normally.Especially for The random access lead code format of the short sequence of NR (L=139 or 127), due to that may include multiple in a time slot (slot) Random access lead code sequence, and it is different for the number of time slots for including in different one radio frames of subcarrier spacing, because The problem of this can not calculate RA-RNTI using the formula in existing LTE system, proposes solution.

Based on the same technical idea, the embodiment of the present application also provides a kind of base station, which can realize aforementioned implementation The function of base station side in example.

It is the structural schematic diagram of base station provided by the embodiments of the present application, as shown, the base station can include: connect referring to Fig. 3 Receive module 301, determining module 302, sending module 303, in which:

Receiving module 301 is used to receive the random access lead code of terminal transmission；Determining module 302 be used for according to it is described with The running time-frequency resource that machine access lead code occupies determines RA-RNTI, wherein the running time-frequency resource is orthogonal frequency division multiplex OFDM symbol The running time-frequency resource of rank；Sending module 303 is used to send accidental access response message, includes in the accidental access response message The base station is the Downlink Control Information of the terminal distribution, and the Downlink Control Information is scrambled using the RA-RNTI.

In the base station, the calculation method of the RA-RNTI can refer to previous embodiment, be not repeated herein.

Based on the same technical idea, the embodiment of the present application also provides a kind of terminal, which can realize aforementioned implementation The function of terminal side in example.

It referring to fig. 4, is the structural schematic diagram of terminal provided by the embodiments of the present application, as shown, the terminal can include: hair Send module 401, determining module 402, receiving module 403, in which:

Sending module 401 is used to send random access leader sequence to base station；Determining module 402 is used for according to described random The running time-frequency resource that access lead sequence occupies, determines RA-RNTI, wherein the running time-frequency resource is the time-frequency of OFDM symbol rank Resource；Receiving module 403 is used to receive the accidental access response message that the base station is sent, and is descrambled using the RA-RNTI The Downlink Control Information for including in the accidental access response message.

In the terminal, the calculation method of the RA-RNTI can refer to previous embodiment, be not repeated herein.

Based on the same technical idea, the embodiment of the present application also provides a kind of communication device, which can be realized The function of base station side in previous embodiment.

It is the structural schematic diagram of communication device provided by the embodiments of the present application, as shown, the communication device referring to Fig. 5 Can include: processor 501, memory 502, transceiver 503 and bus interface.

Processor 501, which is responsible for management bus architecture and common processing, memory 502, can store processor 501 and is holding Used data when row operation.Transceiver 503 is for sending and receiving data under the control of processor 501.

Bus architecture may include the bus and bridge of any number of interconnection, specifically represented by processor 501 one or The various circuits for the memory that multiple processors and memory 502 represent link together.Bus architecture can also will be such as outer Various other circuits of peripheral equipment, voltage-stablizer and management circuit or the like link together, these are all that this field institute is public Know, therefore, it will not be further described herein.Bus interface provides interface.Processor 501 is responsible for the total coil holder of management Structure and common processing, memory 502 can store the used data when executing operation of processor 501.

The process that the embodiment of the present invention discloses, can be applied in processor 501, or realized by processor 501.In reality During now, each step of signal processing flow can pass through the integrated logic circuit or software of the hardware in processor 501 The instruction of form is completed.Processor 501 can be general processor, digital signal processor, specific integrated circuit, scene can compile Journey gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, may be implemented Or disclosed each method, step and logic diagram in the execution embodiment of the present invention.General processor can be microprocessor Or any conventional processor etc..The step of method in conjunction with disclosed in the embodiment of the present invention, can be embodied directly at hardware Reason device executes completion, or in processor hardware and software module combine and execute completion.Software module can be located at random Memory, flash memory, read-only memory, the abilities such as programmable read only memory or electrically erasable programmable memory, register In the storage medium of domain maturation.The storage medium is located at memory 502, and processor 501 reads the information in memory 502, knot Close the step of its hardware completes signal processing flow.

Specifically, processor 501, for reading program and execution in memory 502: being sent out by transceiver terminal The random access lead code sent；According to the running time-frequency resource that the random access lead code occupies, RA-RNTI is determined, wherein described Running time-frequency resource is the other running time-frequency resource of orthogonal frequency division multiplex OFDM symbol level；Random access response is sent by the transceiver to disappear It ceases, includes the Downlink Control Information that the base station is the terminal distribution, the downlink control in the accidental access response message Information processed is scrambled using the RA-RNTI.

Based on the same technical idea, the embodiment of the present application also provides a kind of communication device, which can be realized The function of terminal side in previous embodiment.

It is the structural schematic diagram of communication device provided by the embodiments of the present application, as shown, the communication device referring to Fig. 6 Can include: processor 601, memory 602, transceiver 603 and bus interface.

Processor 601, which is responsible for management bus architecture and common processing, memory 602, can store processor 601 and is holding Used data when row operation.Transceiver 603 is for sending and receiving data under the control of processor 601.

Bus architecture may include the bus and bridge of any number of interconnection, specifically represented by processor 601 one or The various circuits for the memory that multiple processors and memory 602 represent link together.Bus architecture can also will be such as outer Various other circuits of peripheral equipment, voltage-stablizer and management circuit or the like link together, these are all that this field institute is public Know, therefore, it will not be further described herein.Bus interface provides interface.Processor 601 is responsible for the total coil holder of management Structure and common processing, memory 602 can store the used data when executing operation of processor 601.

The process that the embodiment of the present invention discloses, can be applied in processor 601, or realized by processor 601.In reality During now, each step of signal processing flow can pass through the integrated logic circuit or software of the hardware in processor 601 The instruction of form is completed.Processor 601 can be general processor, digital signal processor, specific integrated circuit, scene can compile Journey gate array or other programmable logic device, discrete gate or transistor logic, discrete hardware components, may be implemented Or disclosed each method, step and logic diagram in the execution embodiment of the present invention.General processor can be microprocessor Or any conventional processor etc..The step of method in conjunction with disclosed in the embodiment of the present invention, can be embodied directly at hardware Reason device executes completion, or in processor hardware and software module combine and execute completion.Software module can be located at random Memory, flash memory, read-only memory, the abilities such as programmable read only memory or electrically erasable programmable memory, register In the storage medium of domain maturation.The storage medium is located at memory 602, and processor 601 reads the information in memory 602, knot Close the step of its hardware completes signal processing flow.

Specifically, processor 601, for reading program and execution in memory 602: by the transceiver to base station Send random access leader sequence；RA-RNTI is determined according to the running time-frequency resource that the random access leader sequence occupies, wherein The running time-frequency resource is the other running time-frequency resource of orthogonal frequency division multiplex OFDM symbol level；It is sent out by base station described in the transceiver The accidental access response message sent, and the downlink control for including in the accidental access response message is descrambled using the RA-RNTI Information processed.

In above-mentioned Fig. 3, Fig. 4, Fig. 5 and device shown in fig. 6, optionally, formula (2), formula (3) or formula can be used (4) RA-RNTI is calculated.

Based on the same technical idea, the embodiment of the present application also provides a kind of computer storage mediums.The computer Readable storage medium storing program for executing is stored with computer executable instructions, before the computer executable instructions are for executing the computer State process performed by base station side in embodiment.

Based on the same technical idea, the embodiment of the present application also provides a kind of computer storage mediums.The computer Readable storage medium storing program for executing is stored with computer executable instructions, before the computer executable instructions are for executing the computer State process performed by terminal side in embodiment.

The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

Although the preferred embodiment of the application has been described, it is created once a person skilled in the art knows basic Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as It selects embodiment and falls into all change and modification of the application range.

Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the application to the application Mind and range.In this way, if these modifications and variations of the application belong to the range of the claim of this application and its equivalent technologies Within, then the application is also intended to include these modifications and variations.

Claims

1. a kind of RA-RNTI determines method characterized by comprising

Base station receives the random access lead code that terminal is sent；

The running time-frequency resource that the base station is occupied according to the random access lead code determines random access-wireless network identification RA- RNTI；Wherein, the running time-frequency resource is the other running time-frequency resource of orthogonal frequency division multiplex OFDM symbol level；

The base station sends accidental access response message, include the base station in the accidental access response message is the terminal The Downlink Control Information of distribution, the Downlink Control Information are scrambled using the RA-RNTI.

2. the method as described in claim 1, which is characterized in that the RA-RNTI is provided according to the time-frequency that the lead code occupies The time-domain resource relevant parameter and frequency domain resource relevant parameter in source determine；

Wherein, the time-domain resource relevant parameter includes: the starting OFDM symbol of the random access lead code occupancy at place Index of the time slot that index, random access lead code in time slot occupy in the radio frames of place；

The frequency domain resource relevant parameter includes: the frequency domain occupied based on the revised Physical Random Access Channel PRACH of coefficient The index of bandwidth, the coefficient is determining according to the OFDM symbol quantity in the number of timeslots and a time slot in a subframe, institute It states PRACH and is used for transmission the random access lead code.

3. method according to claim 1 or 2, which is characterized in that the calculation formula of the RA-RNTI are as follows:

Wherein:

Start_symbol_index_in_slot is the starting OFDM symbol of random access lead code occupancy in the time slot of place Index；

N_symbol_per_slot indicates the quantity of the OFDM symbol in a time slot；

N_slot_per_subframe indicates the number of timeslots in a subframe；

F_id is the index for the frequency domain bandwidth that PRACH is occupied.

4. the method as described in claim 1, which is characterized in that the RA-RNTI is provided according to the time-frequency that the lead code occupies The time-domain resource relevant parameter and frequency domain resource relevant parameter in source determine；

Wherein, the time-domain resource relevant parameter includes: the starting OFDM symbol of the random access lead code occupancy at place OFDM symbol number that the sequence of index, the random access lead code in time slot includes, the random access lead code occupy Index of the time slot in the radio frames of place, wherein the starting OFDM symbol that the random access lead code occupies is at place Index in gap is corresponding with the time slot that the random access lead code occupies, and the sequence of the random access lead code includes OFDM symbol number is corresponding with the format of the sequence of the random access lead code；

5. method as described in claim 1 or 4, which is characterized in that the calculation formula of the RA-RNTI are as follows:

RA-RNTI=1+sequence_id_per_slot*N_OS+slot_id*N_symbol_per _ slot+10*N_slot_ per_subframe*N_symbol_per_slot*f_id

Wherein:

Sequence_id_per_slot is the rope of the sequence of random access lead code in the time slot that random access lead code occupies Draw；Wherein, the corresponding relationship between time slot and the index of random access lead code is pre-configured with or makes an appointment；

N_OS is the OFDM symbol number that the sequence of a random access lead code includes；Wherein, the N_OS be pre-configured with or It makes an appointment, the sequence of different random access lead codes corresponds to different N_OS；

N_symbol_per_slot indicates the quantity of the OFDM symbol in a time slot；

N_slot_per_subframe indicates the number of timeslots in a subframe；

F_id is the index for the frequency domain bandwidth that PRACH is occupied.

6. the method as described in claim 1, which is characterized in that the RA-RNTI is provided according to the time-frequency that the lead code occupies The time-domain resource relevant parameter and frequency domain resource relevant parameter in source determine；

Wherein, the time-domain resource relevant parameter includes: the starting OFDM symbol of the random access lead code occupancy at place Random access lead code sequence is total, described random in the time slot that index, the random access lead code in time slot occupy Index of the time slot that access lead code occupies in the radio frames of place, wherein the starting that the random access lead code occupies Index of the OFDM symbol in the time slot of place is corresponding with the time slot that the random access lead code occupies, before the random access The sum of random access lead code sequence is corresponding with time slot index in the time slot that leading code occupies；

7. method as described in claim 1 or 6, which is characterized in that the calculation formula of the RA-RNTI are as follows:

RA-RNTI=1+sequence_id_per_slot+slot_id*N_sequence_per_sl ot+10*N_slot_ per_subframe*N_symbol_per_slot*f_id

Wherein:

N_sequence_per_slot is the sum of random access lead code sequence in the time slot that random access lead code occupies； Wherein, N_sequence_per_slot is corresponding with time slot, and the sum of the random access lead code sequence in a time slot is pre- First configures or make an appointment；

N_symbol_per_slot indicates the quantity of the OFDM symbol in a time slot；

N_slot_per_subframe indicates the number of timeslots in a subframe；

F_id is the index for the frequency domain bandwidth that PRACH is occupied.

8. a kind of RA-RNTI determines method characterized by comprising

Terminal sends random access leader sequence to base station；

The running time-frequency resource that the terminal is occupied according to the random access leader sequence determines random access-wireless network identification RA-RNTI；Wherein, the running time-frequency resource is the other running time-frequency resource of orthogonal frequency division multiplex OFDM symbol level；

The terminal receives the accidental access response message that the base station is sent, and described random using RA-RNTI descrambling The Downlink Control Information for including in access response message.

9. method according to claim 8, which is characterized in that the RA-RNTI is provided according to the time-frequency that the lead code occupies The time-domain resource relevant parameter and frequency domain resource relevant parameter in source determine；

10. method as claimed in claim 8 or 9, which is characterized in that the calculation formula of the RA-RNTI are as follows:

Wherein:

N_symbol_per_slot indicates the quantity of the OFDM symbol in a time slot；

N_slot_per_subframe indicates the number of timeslots in a subframe；

F_id is the index for the frequency domain bandwidth that PRACH is occupied.

11. method according to claim 8, which is characterized in that the RA-RNTI is provided according to the time-frequency that the lead code occupies The time-domain resource relevant parameter and frequency domain resource relevant parameter in source determine；

12. the method as described in claim 8 or 11, which is characterized in that the calculation formula of the RA-RNTI are as follows:

Wherein:

N_symbol_per_slot indicates the quantity of the OFDM symbol in a time slot；

N_slot_per_subframe indicates the number of timeslots in a subframe；

F_id is the index for the frequency domain bandwidth that PRACH is occupied.

13. method according to claim 8, which is characterized in that the RA-RNTI is provided according to the time-frequency that the lead code occupies The time-domain resource relevant parameter and frequency domain resource relevant parameter in source determine；

14. the method as described in claim 8 or 13, which is characterized in that the calculation formula of the RA-RNTI are as follows:

Wherein:

N_symbol_per_slot indicates the quantity of the OFDM symbol in a time slot；

N_slot_per_subframe indicates the number of timeslots in a subframe；

F_id is the index for the frequency domain bandwidth that PRACH is occupied.

15. a kind of base station characterized by comprising

Determining module, the running time-frequency resource for being occupied according to the random access lead code, determines random access-wireless network mark Know RA-RNTI；Wherein, the running time-frequency resource is the other running time-frequency resource of orthogonal frequency division multiplex OFDM symbol level；

It is institute that sending module, which includes the base station for sending accidental access response message, in the accidental access response message, The Downlink Control Information of terminal distribution is stated, the Downlink Control Information is scrambled using the RA-RNTI.

16. a kind of terminal characterized by comprising

Sending module, for sending random access leader sequence to base station；

Determining module, the running time-frequency resource for being occupied according to the random access leader sequence, determines random access-wireless network Identify RA-RNTI；Wherein, the running time-frequency resource is the running time-frequency resource of OFDM symbol rank；

Receiving module, the accidental access response message sent for receiving the base station, and using described in RA-RNTI descrambling The Downlink Control Information for including in accidental access response message.

17. a kind of communication device characterized by comprising processor, memory, transceiver and bus interface；The processing Device, for reading the program in memory, execution:

The random access lead code sent by the transceiver terminal；

According to the running time-frequency resource that the random access lead code occupies, random access-wireless network identification RA-RNTI is determined；Its In, the running time-frequency resource is the other running time-frequency resource of orthogonal frequency division multiplex OFDM symbol level；

Accidental access response message is sent by the transceiver, include the base station in the accidental access response message is institute The Downlink Control Information of terminal distribution is stated, the Downlink Control Information is scrambled using the RA-RNTI.

18. communication device as claimed in claim 17, which is characterized in that the RA-RNTI is occupied according to the lead code The time-domain resource relevant parameter and frequency domain resource relevant parameter of running time-frequency resource determine；

19. the communication device as described in claim 17 or 18, which is characterized in that the calculation formula of the RA-RNTI are as follows:

Wherein:

N_symbol_per_slot indicates the quantity of the OFDM symbol in a time slot；

N_slot_per_subframe indicates the number of timeslots in a subframe；

F_id is the index for the frequency domain bandwidth that PRACH is occupied.

20. communication device as claimed in claim 17, which is characterized in that the RA-RNTI is occupied according to the lead code The time-domain resource relevant parameter and frequency domain resource relevant parameter of running time-frequency resource determine；

21. the communication device as described in claim 17 or 20, which is characterized in that the calculation formula of the RA-RNTI are as follows:

Wherein:

N_symbol_per_slot indicates the quantity of the OFDM symbol in a time slot；

N_slot_per_subframe indicates the number of timeslots in a subframe；

F_id is the index for the frequency domain bandwidth that PRACH is occupied.

22. communication device as claimed in claim 17, which is characterized in that the RA-RNTI is occupied according to the lead code The time-domain resource relevant parameter and frequency domain resource relevant parameter of running time-frequency resource determine；

23. the communication device as described in claim 17 or 22, which is characterized in that the calculation formula of the RA-RNTI are as follows:

Wherein:

N_symbol_per_slot indicates the quantity of the OFDM symbol in a time slot；

N_slot_per_subframe indicates the number of timeslots in a subframe；

F_id is the index for the frequency domain bandwidth that PRACH is occupied.

24. a kind of communication device characterized by comprising processor, memory, transceiver and bus interface；The processing Device, for reading the program in memory, execution:

Random access leader sequence is sent to base station by the transceiver；

According to the running time-frequency resource that the random access leader sequence occupies, random access-wireless network identification RA-RNTI is determined； Wherein, the running time-frequency resource is the other running time-frequency resource of orthogonal frequency division multiplex OFDM symbol level；

The accidental access response message sent by base station described in the transceiver, and institute is descrambled using the RA-RNTI State the Downlink Control Information for including in accidental access response message.

25. communication device as claimed in claim 24, which is characterized in that the RA-RNTI is occupied according to the lead code The time-domain resource relevant parameter and frequency domain resource relevant parameter of running time-frequency resource determine；

26. the communication device as described in claim 24 or 25, which is characterized in that the calculation formula of the RA-RNTI are as follows:

Wherein:

N_symbol_per_slot indicates the quantity of the OFDM symbol in a time slot；

N_slot_per_subframe indicates the number of timeslots in a subframe；

F_id is the index for the frequency domain bandwidth that PRACH is occupied.

27. communication device as claimed in claim 24, which is characterized in that the RA-RNTI is occupied according to the lead code The time-domain resource relevant parameter and frequency domain resource relevant parameter of running time-frequency resource determine；

28. the communication device as described in claim 24 or 27, which is characterized in that the calculation formula of the RA-RNTI are as follows:

Wherein:

N_symbol_per_slot indicates the quantity of the OFDM symbol in a time slot；

N_slot_per_subframe indicates the number of timeslots in a subframe；

F_id is the index for the frequency domain bandwidth that PRACH is occupied.

29. communication device as claimed in claim 24, which is characterized in that the RA-RNTI is occupied according to the lead code The time-domain resource relevant parameter and frequency domain resource relevant parameter of running time-frequency resource determine；

30. the communication device as described in claim 24 or 29, which is characterized in that the calculation formula of the RA-RNTI are as follows:

Wherein:

N_symbol_per_slot indicates the quantity of the OFDM symbol in a time slot；

N_slot_per_subframe indicates the number of timeslots in a subframe；

F_id is the index for the frequency domain bandwidth that PRACH is occupied.

31. a kind of computer storage medium, which is characterized in that the computer-readable recording medium storage has computer executable Instruction, the method that the computer executable instructions are used to that the computer to be made to execute as described in right wants any one of 1 to 7.

32. a kind of computer storage medium, which is characterized in that the computer-readable recording medium storage has computer executable Instruction, the side that the computer executable instructions are used to that the computer to be made to execute as described in any one of claim 8 to 14 Method.